Question to the Department for Levelling Up, Housing & Communities:

To ask the Secretary of State for Housing, Communities and Local Government, pursuant the Answer of 8 February 2019 to Question 217110 on Buildings: Insulation, whether employees of the Building Research Establishment were members of the independent expert advisory panel that witnessed the referenced tests.

Peter Bonfield - Chief Executive of the Building Research Establishment - was a member of the independent expert advisory panel when the tests were undertaken. Each test was attended by members of the expert panel, but not all members attended each test. Tests were conducted using BSI's BS 8414 methodology.